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(No Model.)

$. 1). LOCKE.

GRAIN BINDER. Patented Nov.- 8,1881.

N. PETERS. Plwlulilhugnflner, wnhin wn. n. t;

UNITED STATES PATENT OFFICE.

SYLVANUS D. LOUKE, OF HOOSIGK'FALLS, NEW YORK.

G RAlN-BlNDER.

SPECIFICATION forming part of Letters Patent No. 249,248, dated November8, 1881.

Application filed September 23,1880. (No model.)

I the jaws come against and force themselves over the stretched ends ofthe cord, which, by their wedging action alone, press aside and pass inbetween the faces of said jaws. In a later construction, made thesubject of Letters Patent No. 139,008, May 20, 187 3, also granted tome, the tyingbill is formed with a solid lower jaw and elastic upperjaw, the latter having a downwardly-projecting lug which takes into arecess in the former, and past which the cord is forced by the wedgingaction aforesaid,so as to be caught and retained until the loop is drawn011' and tightened. As

the bow of the knot must be pulled out of the jaws after the loop hasbeen tightened upon the strands, I long since recognized theundesirability of having the lug upon the only jaw which would yield,and hence suggested in this last-mentioned patent that the position oflug and recess might be reversed; but in practice I found that theelastic piece could not be safely or cheaply made with a recess, andtherefore in a subsequent patent, No. 218,038, granted me July 29, 1879,described and claimed a tying-bill wherein the lug projects upward fromthe solid jaw, while the elastic jawis made plain. This, although havingmeritorious features, requires an undue strength ofi spring in the upperjaw in order to sufficiently resist the escape of the cord. The elasticpiece is also, in both of the lastm'entioned constructions, liable tolose temper and to break, thus disabling the knotter.

The object of my present invention is to remove these objections, whileat the same time.

preserving an unobstructed upper surface or crown, which is essential inthis class of knot ters and it consists in a tying-bill formed withan'inelastic spring-pressed pivoted upper jaw, the heel of which is sunkinto the body of the bill, so as to be flush therewith when the jaws areclosed; in a tying-bill having a pivoted upper jaw formed with a recessinto which a projection upon the lower jaw directly takes in novel meansfor adjusting the stress of the spriu g which closes the pivotedupperjaw, and in the various combinations and details of constructionhereinafter described and claimed.

In the drawings, Figure 1 is a perspective view of a tyingbillconstructed according to my invention. Fig. 2 is a vertical sect-ionlengthwise of the bill Fig. 3, a topplan view, and Fig. 4 a front view.

This device may be used in connection with any suitable mechanism forcarrying the band about the bundle and properly presenting it, and forholding and cutting its ends; and such it is unnecessary to describe.

A is the body part of the knotter or tyingbill, mounted upon a spindle,B, by which it is supported and driven.- It is shaped substantially asshown in the drawings,having curved and cam surfaces, by which the endsof the cord are gathered in and guided as the bill rcvolves, so as to becarried up and slipped over the crown and crossed upon the strandsleadingto the gavel. The cam-surface a, by which the ends of the cordare lifted, starts from a point in the base in advance of and belowtheneck I) of the knotter, and from thence runs up and back until itreaches the extreme rear edge of the crown at c. From the point 0 thecrown rises in an easy curve to the point cl, when themetal is cut awayfor about half its thickness to form the under jaw, E, of the knotter.This is made tapering, and has near its nose or point a spline or rib,c, inclined on its frontedge and vertical, or nearly vertical, on

its rear edge, as in my former patent last above referred to, in orderto retain the ends of the binding-cord when they have been passedbetween the jaws.

The body part hasnear its heel a cylindrical recess, F, trendingdownward from the crown, and adapted to receive a spiral spring, f, andreaching from this recess to the point d, at which the under jawcommences, is a groove or channel of sufficient width and depth toreceive the shank of the upper jaw, G, and perunit of its being pivotedtherein. Said jaw is curved and tapering, to correspond with the curvesand taper of the body and lower jaw, and has near its point a recess, 9,which shuts over the rib 0 upon thejaw beneath, to guard against theescape of the cord. Its shank is of such size and shape as to fit snuglybetween the walls of the channel in the body portion and to bring itstop normally flush with the upper surface or crown of the latter, and atits heel end it has a cap or enlargement, which fits into and closes thetop of the cylindrical recess in the body portion and sits upon thespring therein. A pivot pin or screw, h, passes through the side wallsof the channel and through the shank of the upperjaw at a pointsufficiently inadvance of the neck I) to insure that the forming of theloop in the cord shall take place entirely behind it. The spiral springwill be dropped into its socket before the parts are'united by thepivot, and when the latter has been put in place will be held fromescape and in position for action by thecylindrical walls of its socketand by the enlarged heel of the movable jaw. Should it become slack orweak from any cause, or should it be necessary to compensate for achange in the size of the cord, the upper jaw may be removed and theface of the spring quickly adjusted by the insertion of washers 2', ofany convenient material.

The upper surface of the shank and heel portion of the pivoted jaw is,as already stated, normally flush with the crown of the body portion ofthe knotter. The arrangement of the pivot is also such that when the jawis opened its heel will sink beneath said crown. Therefore the stress ofthe cord, which in the process of forming the knot is laid in atightloop about the bill behind the pivot, can neitherinterfere with theopening and closing of thejaw at the proper moment to receive the ends,nor itself cause its premature opening, and the jaw will offer noobstruction to the removal of the loop to complete the knot, or to theaction of the stripper-arm, by which this removal is sometimesaccomplished. At the points both jaws are beveled outwardly, in orderthat, as theyv come against the ends of the cord after the loop has beenformed, the latter may wedge itself between them, lifting the pivotedupper jaw and passing in behind the rib on the lower. When the bight ot'the cord is pulled from the jaws after the knot is tied it will be bentup into and retarded, but not positively stopped, by the recess in theupper jaw, so that the strands will be drawn tight.

I claim as my invention-- 1. A tying-bill or knotter consisting of arigid lowerjaw and body part having curves or cam-surfaces, whereby thestrands of cord are deflected toward its crown as it revolves, and apivoted upper jaw having its shank sunk into the body part, so as to lienormally flush with the crown and form a, continuation of the cordguiding surface, said jaws having their ends beveled to permit thestrands to enter between and force them apart.

2. Atying-billformedwith an inelasticspringpressed pivoted upper jaw,the heel of which is sunk into the body of the bill, so as to be flushtherewith when the jaws are closed under the force of the spring, andoperated by the binding-cord, as set forth and described.

3. A tying-bill or knotter consisting of a rigid lower jaw and body parthaving curves or cam-surfaces, whereby the strands of cord are deflectedtoward its crown as it revolves, and a pivoted upper jawhaving its shanksunk into the body part and kept normally flush with the crown thereofby the force ot'a spring,said jaws being opened by the action of thehind ing-cord, as described.

4. A tyingbill formed with a rigid lower jaw having an upvs-ardly-projecting rib or shoulder near its point, and a pivotedupperjaw recessed immediately above said rib or shoulder to take overit.

5. A tying-bill formed with a rigid lowerjaw having anupwardlyprojecting rib or shoulder near its point, and a pivoted upperjaw recessed to take over said rib or shoulder, and sunk as toits shanknormally flush with the crown of the bill.

6. The combination, in a tyingbill, of the body part, socketed andchanneled from its crown, and bearing the rigid lower jaw, the coiledspring sitting in said socket, and the pivoted upper jaw having itsshank sunk flush in said channel, and its heel formed with a cap toclose said socket and confine the spring.

7. The combination, in a tying-bill, of the body part, socketed andchanneled from its crown, and bearing the rigid lower jaw, the coiledspring sitting in saidsocket, one or more washers, whereby the stress ofthe spring is adjusted, and the pivoted upper jaw having its shank sunkflush in said channel, and its heel end formed with a cap to close thesocket and confine the spring.

8. The combination, in a tying-bill, of the socketed and channeled bodypart, the lower jaw, rigid th erewith,and formed with a shoulder nearits point, the coiled spring sitting in the cylindrical socket in saidbody part, the upperjaw having near itspoint a recess to sit over theshoulder on the lowerjaw, and at its heel a cap to shut into the socketand confine the spring, and the pivot-pin serving to unite all the partstogether for operation.

- SYLVAN US D. LOOKE. Witnesses:

WILLIAM M. ARCHIBALD, EDWARD M. J cross.

